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persistence.store.memory.js
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persistence.store.memory.js
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try {
if(!window) {
window = {};
//exports.console = console;
}
} catch(e) {
window = {};
exports.console = console;
}
var persistence = (window && window.persistence) ? window.persistence : {};
if(!persistence.store) {
persistence.store = {};
}
persistence.store.memory = {};
persistence.store.memory.config = function(persistence, dbname) {
var argspec = persistence.argspec;
dbname = dbname || 'persistenceData';
var allObjects = {}; // entityName -> LocalQueryCollection
persistence.getAllObjects = function() { return allObjects; };
var defaultAdd = persistence.add;
persistence.add = function(obj) {
if(!this.trackedObjects[obj.id]) {
defaultAdd.call(this, obj);
var entityName = obj._type;
if(!allObjects[entityName]) {
allObjects[entityName] = new persistence.LocalQueryCollection();
allObjects[entityName]._session = persistence;
}
allObjects[entityName].add(obj);
}
return this;
};
var defaultRemove = persistence.remove;
persistence.remove = function(obj) {
defaultRemove.call(this, obj);
var entityName = obj._type;
allObjects[entityName].remove(obj);
};
persistence.schemaSync = function (tx, callback, emulate) {
var args = argspec.getArgs(arguments, [
{ name: "tx", optional: true, check: persistence.isTransaction, defaultValue: null },
{ name: "callback", optional: true, check: argspec.isCallback(), defaultValue: function(){} },
{ name: "emulate", optional: true, check: argspec.hasType('boolean') }
]);
args.callback();
};
persistence.flush = function (tx, callback) {
var args = argspec.getArgs(arguments, [
{ name: "tx", optional: true, check: persistence.isTransaction },
{ name: "callback", optional: true, check: argspec.isCallback(), defaultValue: function(){} }
]);
var fns = persistence.flushHooks;
persistence.asyncForEach(fns, function(fn, callback) {
fn(session, tx, callback);
}, function() {
var trackedObjects = persistence.trackedObjects;
for(var id in trackedObjects) {
if(trackedObjects.hasOwnProperty(id)) {
if (persistence.objectsToRemove.hasOwnProperty(id)) {
delete trackedObjects[id];
} else {
trackedObjects[id]._dirtyProperties = {};
}
}
}
args.callback();
});
};
persistence.transaction = function(callback) {
setTimeout(function() {
callback({executeSql: function() {} });
}, 0);
};
persistence.loadFromLocalStorage = function(callback) {
var dump = window.localStorage.getItem(dbname);
if(dump) {
this.loadFromJson(dump, callback);
} else {
callback && callback();
}
};
persistence.saveToLocalStorage = function(callback) {
this.dumpToJson(function(dump) {
window.localStorage.setItem(dbname, dump);
if(callback) {
callback();
}
});
};
/**
* Remove all tables in the database (as defined by the model)
*/
persistence.reset = function (tx, callback) {
var args = argspec.getArgs(arguments, [
{ name: "tx", optional: true, check: persistence.isTransaction, defaultValue: null },
{ name: "callback", optional: true, check: argspec.isCallback(), defaultValue: function(){} }
]);
tx = args.tx;
callback = args.callback;
allObjects = {};
this.clean();
callback();
};
/**
* Dummy
*/
persistence.close = function() {};
// QueryCollection's list
function makeLocalClone(otherColl) {
var coll = allObjects[otherColl._entityName];
if(!coll) {
coll = new persistence.LocalQueryCollection();
}
coll = coll.clone();
coll._filter = otherColl._filter;
coll._prefetchFields = otherColl._prefetchFields;
coll._orderColumns = otherColl._orderColumns;
coll._limit = otherColl._limit;
coll._skip = otherColl._skip;
coll._reverse = otherColl._reverse;
return coll;
}
/**
* Asynchronous call to actually fetch the items in the collection
* @param tx transaction to use
* @param callback function to be called taking an array with
* result objects as argument
*/
persistence.DbQueryCollection.prototype.list = function (tx, callback) {
var args = argspec.getArgs(arguments, [
{ name: 'tx', optional: true, check: persistence.isTransaction, defaultValue: null },
{ name: 'callback', optional: false, check: argspec.isCallback() }
]);
tx = args.tx;
callback = args.callback;
var coll = makeLocalClone(this);
coll.list(null, callback);
};
/**
* Asynchronous call to remove all the items in the collection.
* Note: does not only remove the items from the collection, but
* the items themselves.
* @param tx transaction to use
* @param callback function to be called when clearing has completed
*/
persistence.DbQueryCollection.prototype.destroyAll = function (tx, callback) {
var args = argspec.getArgs(arguments, [
{ name: 'tx', optional: true, check: persistence.isTransaction, defaultValue: null },
{ name: 'callback', optional: true, check: argspec.isCallback(), defaultValue: function(){} }
]);
tx = args.tx;
callback = args.callback;
var coll = makeLocalClone(this);
coll.destroyAll(null, callback);
};
/**
* Asynchronous call to count the number of items in the collection.
* @param tx transaction to use
* @param callback function to be called when clearing has completed
*/
persistence.DbQueryCollection.prototype.count = function (tx, callback) {
var args = argspec.getArgs(arguments, [
{ name: 'tx', optional: true, check: persistence.isTransaction, defaultValue: null },
{ name: 'callback', optional: false, check: argspec.isCallback() }
]);
tx = args.tx;
callback = args.callback;
var coll = makeLocalClone(this);
coll.count(null, callback);
};
persistence.ManyToManyDbQueryCollection = function(session, entityName) {
this.init(session, entityName, persistence.ManyToManyDbQueryCollection);
this._items = [];
};
persistence.ManyToManyDbQueryCollection.prototype = new persistence.LocalQueryCollection();
persistence.ManyToManyDbQueryCollection.prototype.initManyToMany = function(obj, coll) {
this._obj = obj;
this._coll = coll; // column name
};
persistence.ManyToManyDbQueryCollection.prototype.add = function(item, recursing) {
persistence.LocalQueryCollection.prototype.add.call(this, item);
if(!recursing) { // prevent recursively adding to one another
// Let's find the inverse collection
var meta = persistence.getMeta(this._obj._type);
var inverseProperty = meta.hasMany[this._coll].inverseProperty;
persistence.get(item, inverseProperty).add(this._obj, true);
}
};
persistence.ManyToManyDbQueryCollection.prototype.remove = function(item, recursing) {
persistence.LocalQueryCollection.prototype.remove.call(this, item);
if(!recursing) { // prevent recursively adding to one another
// Let's find the inverse collection
var meta = persistence.getMeta(this._obj._type);
var inverseProperty = meta.hasMany[this._coll].inverseProperty;
persistence.get(item, inverseProperty).remove(this._obj, true);
}
};
};
try {
exports.config = persistence.store.memory.config;
exports.getSession = function() { return persistence; };
} catch(e) {}